Product Placement Blog ➞ BicyclesKlein Bicycle in Seinfeld Season 4 Episode 7 “The Bubble Boy” (1992)December 3, 2019 Sergey TV Show Hi! On Tuesday, December 3, I analyzed a TV Show and product placement was spotted: Klein Bicycle in Seinfeld Season 4 Episode 7 “The Bubble Boy” (1992).Here are 2 image(s) below: